Puddling \Pud"dling\, n. 1. (Hydraul. Engin.) (a) The process of working clay, loam, pulverized ore, etc., with water, to render it compact, or impervious to liquids; also, the process of rendering anything impervious to liquids by means of puddled material. (b) Puddle. See {Puddle}, n., 2.
2. (Metal.) The art or process of converting cast iron into wrought iron or steel by subjecting it to intense heat and frequent stirring in a reverberatory furnace in the presence of oxidizing substances, by which it is freed from a portion of its carbon and other impurities.
{Puddling furnace}, a reverberatory furnace in which cast iron is converted into wrought iron or into steel by puddling.
Puddle \Pud"dle\, v. t. [imp. & p. p. {Puddled}; p. pr. & vb. n. {Puddling}.] 1. To make foul or muddy; to pollute with dirt; to mix dirt with (water).
Some unhatched practice . . . Hath puddled his clear spirit. --Shak.
2. (a) To make dense or close, as clay or loam, by working when wet, so as to render impervious to water. (b) To make impervious to liquids by means of puddle; to apply puddle to.
3. To subject to the process of puddling, as iron, so as to convert it from the condition of cast iron to that of wrought iron. --Ure.
{Puddled steel}, steel made directly from cast iron by a modification of the puddling process.